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Finding the Fourth Proportional to 22,107.68, 30,509.24 and 12,036.29

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Solution

The fourth proportional to 22,107.68, 30,509.24 and 12,036.29 is: 16,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,107.68 : 30,509.24 = 12,036.29 : x
  2. Step 2: Convert to fraction form
    22,107.68/30,509.24 = 12,036.29/x
  3. Step 3: Cross multiply
    22,107.68x = 30,509.24 × 12,036.29
  4. Step 4: Simplify right side
    22,107.68x = 367,218,136.59
  5. Step 5: Solve for x
    x = 367,218,136.59/22,107.68
  6. Step 6: Final answer
    x = 16,610.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.